1991 Chevy Cheyenne Oil Pressure

1991 CHEVROLET CHEYENNE
180,000 MILES • 6 CYL • 4WD • AUTOMATIC
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ZACHATTACK15669
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  • 1 POST
For the past several years this truck has had a problem with the oil pressure gauge. What is causing the gauge to barry, or tac out, wile cold and fluctuate when warm. When it is warm you hit the gas and it barrys it again. I was told it was the sending unit.
Jan 18, 2010 at 7:20 PM
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RASMATAZ
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  • 75,992 POSTS
Best way to tell if its the oil pressure sending unit is to hook up a mechanical gauge and check the oil pressure if its normal replace the oil pressure switch abnormal could be the oil pump and engine bearings
Jan 18, 2010 at 8:07 PM